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lammps/examples/pour/log.pour.2d.1Feb14.linux.4
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LAMMPS (1 Feb 2014)
# Pour 2d granular particles into container
dimension 2
atom_style sphere
boundary f fm p
newton off
communicate single vel yes
region reg block 0 100 0 50 -0.5 0.5 units box
create_box 1 reg
Created orthogonal box = (0 0 -0.5) to (100 50 0.5)
4 by 1 by 1 MPI processor grid
neighbor 0.2 bin
neigh_modify delay 0
# IMPORTANT NOTE: these values of stiffness (4000) and timestep (0.001)
# are used in this example file to produce a quick simulation and movie.
# More appropriate values for realistic simulations would be
# k = 4.0e5 and dt = 0.0001, as in bench/in.chute (if it were Hertzian).
pair_style gran/hertz/history 4000.0 NULL 100.0 NULL 0.5 0
pair_coeff * *
timestep 0.001
fix 1 all nve/sphere
fix 2 all gravity 1.0 spherical 0.0 -180.0
fix xwalls all wall/gran 4000.0 NULL 100.0 NULL 0 1 xplane 0 100
fix ywalls all wall/gran 4000.0 NULL 100.0 NULL 0 1 yplane 0 NULL
region slab block 1.0 99.0 30 34.5 -0.5 0.5 units box
fix ins all pour 1000 1 4767548 vol 0.4 10 diam range 0.5 1.0 region slab
Particle insertion: 224 every 3000 steps, 1000 by step 12001
fix 3 all enforce2d
compute 1 all erotate/sphere
thermo_style custom step atoms ke c_1 vol
thermo 1000
thermo_modify lost ignore norm no
compute_modify thermo_temp dynamic yes
#dump id all atom 250 dump.pour
#dump 2 all image 500 image.*.jpg type type # zoom 1.6 adiam 1.5
#dump_modify 2 pad 5
#dump 3 all movie 500 movie.mpg type type # zoom 1.6 adiam 1.5
#dump_modify 3 pad 5
run 25000
Memory usage per processor = 8.36296 Mbytes
Step Atoms KinEng 1 Volume
0 0 -0 0 5000
1000 224 201.77464 0 5000
2000 224 372.42868 0 5000
3000 224 599.60221 0 5000
4000 448 1084.3752 0 5000
5000 448 1592.4543 0 5000
6000 448 1763.3153 37.274939 5000
7000 672 1805.206 89.331853 5000
8000 672 1778.0015 111.58381 5000
9000 672 1592.6805 97.550227 5000
10000 896 1631.0865 79.644395 5000
11000 896 1592.1233 66.618058 5000
12000 896 1538.0168 62.305427 5000
13000 1000 1504.7663 60.453118 5000
14000 1000 1258.4278 56.953463 5000
15000 1000 1051.3757 49.481041 5000
16000 1000 745.26845 46.064462 5000
17000 1000 461.4175 44.190391 5000
18000 1000 321.52252 32.000638 5000
19000 1000 219.94195 27.786071 5000
20000 1000 47.588667 19.150667 5000
21000 1000 22.265142 13.29654 5000
22000 1000 16.795774 9.1519062 5000
23000 1000 14.227042 7.3286667 5000
24000 1000 10.712738 5.4385743 5000
25000 1000 9.180883 3.4376108 5000
Loop time of 0.936714 on 4 procs for 25000 steps with 1000 atoms
Pair time (%) = 0.304334 (32.4896)
Neigh time (%) = 0.0807448 (8.62001)
Comm time (%) = 0.0846794 (9.04005)
Outpt time (%) = 0.000462651 (0.0493909)
Other time (%) = 0.466493 (49.801)
Nlocal: 250 ave 260 max 230 min
Histogram: 1 0 0 0 0 0 0 1 0 2
Nghost: 17.5 ave 24 max 12 min
Histogram: 2 0 0 0 0 0 0 0 1 1
Neighs: 598.25 ave 630 max 546 min
Histogram: 1 0 0 0 0 0 1 0 1 1
Total # of neighbors = 2393
Ave neighs/atom = 2.393
Neighbor list builds = 2035
Dangerous builds = 0
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